Compile error 0de1d6287ec384e795f5ef1d006589dd18ff95e9

[Hains van den Bosch]

Compile error due to commit:

​https://github.com/FFmpeg/FFmpeg/commit/0de1d6287ec384e795f5ef1d006589dd18ff95e9

License: LGPL version 2.1 or later
Creating config.mak, config.h, and doc/config.texi...
config.h is unchanged
config.asm is unchanged
libavutil/avconfig.h is unchanged
hains@hains-System-Product-Name:~/FFmpeg$ make -j9
CC libavformat/img2dec.o
CC libavcodec/on2avc.o
make: * No rule to make target 'libavcodec/x86/mlpdsp.c', needed by 'libavcodec/x86/mlpdsp.o'. Stop.
make: * Waiting for unfinished jobs....
YASM libavcodec/x86/hevc_mc.o
STRIP libavcodec/x86/hevc_mc.o
hains@hains-System-Product-Name:~/FFmpeg$

In libavcodec/x86/Makefile line 55:

change:

-OBJS-$(CONFIG_TRUEHD_DECODER) += x86/mlpdsp.o

into:

-OBJS-$(CONFIG_TRUEHD_DECODER) += x86/mlpdsp_init.o

and remove in libavcodec/x86/mlpdsp_init.: (line 202) .

+ c->mlp_rematrix_channel = ff_mlp_rematrix_channel_sse4;
+ if (ARCH_X86_64 && EXTERNAL_AVX2(cpu_flags) && cpu_flags & AV_CPU_FLAG_BMI2)
+ c->mlp_rematrix_channel = ff_mlp_rematrix_channel_avx2_bmi2;
}

It is possible to compile FFmpeg without errors.

I am using ubuntu 14.10.

[jamal]

You need to clean your build folder. You have old objects with outdated dependencies affecting your build.
Undo those changes you did to the source tree then reconfigure with: "make distclean && ./configure"

"rm libavcodec/x86/mlpdsp.{o,d} && make" should also work if you don't want to rebuild everything.